        :root {
            --primary-color: #2c3e50;
            --accent-color: #3498db;
            --card-bg: rgb(255, 255, 255);
            --text-color: #333;
        }

   /**   body {
            font-family: 'Segoe UI', system-ui, sans-serif;
            background: linear-gradient(135deg, rgba(245, 247, 250, 0.6) 0%, rgba(195, 207, 226, 0.6) 100%);
            min-height: 100vh;
            margin: 0;
            padding: 40px 20px;
        }**/

        .toolbox-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .grid-title {
            text-align: center;
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 2rem;
            position: relative;
            display: inline-block;
        }

        .grid-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: var(--accent-color);
        }

        .tools-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            padding: 20px;
        }

        @keyframes shine {
            100% {
                transform: translate(50%, 50%);
            }
        }

        .tool-icon {
            font-size: 2.5rem;
            color: var(--accent-color);
            margin-bottom: 20px;
            transition: transform 0.3s;
        }

        .tool-card:hover .tool-icon {
            transform: scale(1.1);
        }

        .tool-title {
            display:flex;
            align-content:flex-start;
            font-size: 1.4rem;
            color: var(--primary-color);
            margin-bottom: 15px;
            font-weight: 600;
        }

        .tool-desc {
            color: #666;
            line-height: 1.6;
            font-size: 0.95rem;
            align-items: center;
            justify-content: center;
        }

        /* 响应式设计 */
        @media (max-width: 992px) {
            .tools-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .tools-grid {
                grid-template-columns: 1fr;
            }

            .grid-title {
                font-size: 2rem;
            }
        }

                /* From Uiverse.io by SteveBloX */
        .tool-card {
          box-sizing: border-box;
          width: 300px;
          height: 200px;
          background: whitesmoke;
          border: 1px solid white;
          box-shadow: 12px 17px 51px rgba(0, 0, 0, 0.22);
          backdrop-filter: blur(6px);
          border-radius: 17px;
          text-align: left;
          cursor: pointer;
          transition: all 0.5s;
          display: flex;
          user-select: none;
          font-weight: bolder;
          color: black;
          padding: 30px;
        }

        .tool-card:hover {
          border: 1px solid black;
          transform: scale(1.05);
        }

        .tool-card:active {
          transform: scale(0.95) rotateZ(1.7deg);
        }

        .tool-card::before {
            position: absolute;
         /* top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg,
                transparent 25%,
                rgba(52, 152, 219, 0.1) 50%,
                transparent 75%);
            animation: shine 3s infinite;
            overflow: hidden;*/
        }